Reference
·Supporting source
China ethylene capacity at structural closure risk
~15-20 Mt/yr at risk
Roughly 15-20 million tonnes per year of older naphtha-based ethylene cracker capacity in China is considered structurally at risk of closure or rationalisation over the 2025-2028 horizon per S&P Global Chemicals and IHS analytics, as 2022-2024 Chinese additions of 11+ Mt have pushed regional utilisation below 80% and forced commodity producers into negative cash margins. The pace and depth of Chinese rationalisation directly determines Thai cracker spread recovery — PTTGC and SCGC investor decks both flag Chinese rationalisation as the single largest swing factor in their 2026-2027 earnings recovery scenarios. To date, observed closures are smaller than the at-risk envelope; Chinese provincial governments have been reluctant to force exits.
Figure in context
Roughly 15-20 million tonnes per year of older naphtha-based ethylene cracker capacity in China is considered structurally at risk of closure or rationalisation over the 2025-2028 horizon per S&P Global Chemicals and IHS analytics, as 2022-2024 Chinese additions of 11+ Mt have pushed regional utilisation below 80% and forced commodity producers into negative cash margins. The pace and depth of Chinese rationalisation directly determines Thai cracker spread recovery — PTTGC and SCGC investor decks both flag Chinese rationalisation as the single largest swing factor in their 2026-2027 earnings recovery scenarios. To date, observed closures are smaller than the at-risk envelope; Chinese provincial governments have been reluctant to force exits.
Roughly 15-20 million tonnes per year of older naphtha-based ethylene cracker capacity in China is considered structurally at risk of closure or rationalisation over the 2025-2028 horizon per S&P Global Chemicals and IHS analytics, as 2022-2024 Chinese additions of 11+ Mt have pushed regional utilisation below 80% and forced commodity producers into negative cash margins. The pace and depth of Chinese rationalisation directly determines Thai cracker spread recovery — PTTGC and SCGC investor decks both flag Chinese rationalisation as the single largest swing factor in their 2026-2027 earnings recovery scenarios. To date, observed closures are smaller than the at-risk envelope; Chinese provincial governments have been reluctant to force exits.
Time scope
2025-2028 horizon
Source basis
Supporting source
Interpretation notes
What this tells you
Roughly 15-20 million tonnes per year of older naphtha-based ethylene cracker capacity in China is considered structurally at risk of closure or rationalisation over the 2025-2028 horizon per S&P Global Chemicals and IHS analytics, as 2022-2024 Chinese additions of 11+ Mt have pushed regional utilisation below 80% and forced commodity producers into negative cash margins. The pace and depth of Chinese rationalisation directly determines Thai cracker spread recovery — PTTGC and SCGC investor decks both flag Chinese rationalisation as the single largest swing factor in their 2026-2027 earnings recovery scenarios. To date, observed closures are smaller than the at-risk envelope; Chinese provincial governments have been reluctant to force exits.
What not to do with it
Range is consultant-estimated rather than disclosed by Chinese operators. Actual closures depend on provincial subsidy posture; observed 2023-2024 exits are well below the at-risk envelope.
Related figures
Adjacent numbers that add context without drowning the value.
Thai chemical and petrochemical sector revenue (2020-2024)
FTI Petrochemical Industry Club, NESDC National Accounts, PTTGC/IRPC/IVL/SCGC annual reports
PTT Global Chemical (PTTGC) revenue (2020-2024)
PTTGC, SET annual filings, Allnex acquisition disclosures
Indorama Ventures (IVL) EBITDA (2020-2024)
Indorama Ventures, IVL quarterly earnings releases, Bloomberg Intelligence chemicals coverage
Thai ethylene cracker capacity utilisation (2020-2024)
S&P Global Chemicals / IHS Markit, PTTGC and SCGC quarterly operating reports, Petrochemicals Asia
EU CBAM Phase 2 Thai polymer exposure
European Commission CBAM regulation EU 2023/956, Thai Customs export statistics, IVL/PTTGC/SCGC investor disclosures, FTI Petrochemical Industry Club
SCGC Long Son Petrochemicals (LSP) Vietnam operating loss
SCG, SCGC investor presentation, Bangkok Post petrochemical coverage
Report context
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